Improvement in painters  brushes



J. S.' MARTIN. .Paint Brush.

Patented- June 20, 18-54.

UNITED STATES PATENT OFFICE.

JOHN S. DIARTIN, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN PAINTERS BRUSHES.

Specification forming part of Letters Patent No. 11,129, dated June 20,1854.

T0 to whom it may concern.-

Be it known that I, JOHN S. MARTIN, of Boston, in the county of Suffolkand State of Massachusetts, have invented a new and useful Improvementin Painters Brushes; and I do hereby declare that the same is fullydescribed and represented in the following specification and theaccompanying drawings, letters, figures, and references thereof.

In the said drawings, Figure 1 denotes a side View, and Fig. 2 alongitudinal section, of a painters brush having my improvement appliedto it.

The nature of my invention consists in providing the bristles of thebrush with an elastic binder to extend from their connection with thehandle and around the pack and down toward the point or working end ofthe brush.

In the drawings, while A denotes the bandle of the brush, l3 exhibitsthe mass of bristles applied to it and confined upon it in the usualway. An elastic tube or binder (J is placed on the bristles and made toextend entirely around the mass and to compress them together, the saidbinder or tube being made in'lengt-h sufficient to extend as near to thepoints of the bristles as may be necessary to insure their properelasticity.

As the bristles of paint-brushes wear up during their use, it iscustomary to make them in the first place much longer or to project themfarther from their stick or handle than it would be convenient to havethem, in order that they might have the proper amount of elasticity whenused. As when so made they are generally too flexible or elastic forpractical use, it is customary to reduce their elasticity or flexibilityby winding around the mass and for some distance from its connectionwith the' handle what painters term a binder. This consists of a commoninelastic cord, which is removed and a shorter one substituted forit asfast as the wear of the bristles or other circumstances may render thesame necessary.

Instead of employing an inelastic thread or wire, I make use of anelastic tubular binder made of vulcanized india-rubber or other suitablematerial, such binder being placed on the brush, as seen in thedrawings. \Vhile this insures to the bristles all the flexibilitynecessary, it enables them when the brush is in use to move or workapart within the place where they are bound by it, and

thus prevents them from becoming there set or injured in theirelasticity, as is the case when an inelastic binder is employed.

The common cord binder is a source of almost constant care to thepainter. It frequently becomes either worn and broken or requiresadjustment while in use, whereas with an elastic tubular binder eitherfixed in place or applied so as to slide on the bristles most, if not'all, the difficulties of the common binder are avoided.

I might enumerate many advantages the elastic binder possesses; but asthese will be apparent to any skillful painter or brushmaker I have notconsidered such to be necessary.

I do not confine my invention to the ordinary brushes used byhouse-painters,as it is applicable to various other kinds in common use.

\Vhat I claim is- The improvement above described-viz, the applicationof an elastic tubular binder to a brush, instead of an inelastic cord orbinder, as commonly used, the said elastic binder being composed ofcaoutchouc or other suitable material or materials.

In testimony whereof I have hereunto set my signature this29th dayofApril, A. D. 1854.

JOHN S. MARTIN.

Vitnesses:

R. H. EDDY, F. P. HAL Jr.

